verb (used with object)
-
to communicate with (a person) or search for information about (a person) by using Facebook.
My old girlfriend just facebooked me.
His future employer Facebooked him and decided to withdraw the job offer.
-
to post on Facebook.
I facebooked some photos of my cat.
You should Facebook the event so more people will show up.
verb (used without object)
noun
verb
Spelling
The official trademarked name of the social media platform and website is now styled in all capital letters “FACEBOOK,” though prior to 2020 the trademarked style was “facebook,” in all lowercase letters. Formal writing—as exemplified by most news and book publishers—treats such names as regular proper nouns, in this case “Facebook,” using an initial capital letter, but not all caps. However, when a trade name begins with a lowercase letter followed by an uppercase one, such as eBay or iPad, this spelling is retained, even at the beginning of a sentence.
Etymology
Origin of Facebook
First recorded in 2000–05; from facebook, a college student directory with personal photos and basic information
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"This is why Facebook and Instagram still have billions of users."
From BBC ● Oct. 8, 2026
“You might post something on Facebook Marketplace and get 15 inquiries. Then you’ve got to keep track of 15 conversations about what you’ve posted,” Novack said.
From MarketWatch ● Oct. 8, 2026
Angelidou-Smith was previously chief product officer at Reddit and also spent nearly a decade at Meta, where she led Facebook Groups.
From The Wall Street Journal ● Oct. 8, 2026
That movie starring Jesse Eisenberg centered on Mark Zuckerberg, a student who struggled socially and eventually created his own online ecosystem for making friends -- what would become Facebook.
From Barron's ● Oct. 7, 2026
My fragile heart would not have survived seeing up-to-the-minute photos of my friends and classmates on Facebook or Instagram or Snapchat.
From "Americanized" by Sara Saedi
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
